Space Engineers

Space Engineers is a sandbox game about engineering, construction and maintenance of space works.
Players build space ships and space stations of various sizes and utilization (civil and military), pilot ships and perform asteroid mining.

Medieval Engineers

Medieval Engineers is a sandbox game about engineering, construction and the maintenance of architectural work and mechanical equipment using medieval technology. Players build cities, castles and fortifications; construct mechanical devices and engines; and perform landscaping and underground mining.

Engineers Pack

Miner Wars 2081

Single-player/Co-op/Multi-player. Fully destructible and open-world environment, full Solar System traveling, story campaign, mining and exploration, survival game-play, heavyweight musical lineup. Full source code of game and engine (VRAGE) is publicly available.